From: Anthony Van de Gejuchte <anthonyvdgent@gmail.com>
Date: Thu, 14 Jan 2016 21:32:46 +0000 (+0100)
Subject: Add scope test for arguments
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=5c4e470d43438e359fbdb93950e5d37d4df45a69;p=UglifyJS.git

Add scope test for arguments
---

diff --git a/test/mocha/arguments.js b/test/mocha/arguments.js
new file mode 100644
index 00000000..294a6c16
--- /dev/null
+++ b/test/mocha/arguments.js
@@ -0,0 +1,19 @@
+var UglifyJS = require('../../');
+var assert = require("assert");
+
+describe("arguments", function() {
+    it("Should known that arguments in functions are local scoped", function() {
+        var ast = UglifyJS.parse("var arguments; var f = function() {arguments.length}");
+        ast.figure_out_scope();
+
+        // Select symbol in function
+        var symbol = ast.body[1].definitions[0].value.find_variable("arguments");
+
+        assert.strictEqual(symbol.global, false);
+        assert.strictEqual(symbol.scope, ast. // From ast
+            body[1]. // Select 2nd statement (equals to `var f ...`)
+            definitions[0]. // First definition of selected statement
+            value // Select function as scope
+        );
+    });
+});
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